Before Class 上课前 ; 课前 ; 上课之前
Prepare lessons before class 预习
Preparation before class 课前准备
Before Class Begins 课前
Activities before class 课前预习
Before-class Tasks 课前任务
Preparations before class 课前准备
preview before class 课前预习
Before class prepare 上课之前做好预习 ; 做好课前预习 ; 课前预习
Assignments Before Class 课前功课
Before class, review your notes you have taken before you come to class.
课前复习来上课前做的笔记。
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Before class ended, one student asked if the last question would count toward our grade.
下课前，一个学生问最后一个问题是否算在我们的分数里。
Let me finish this diagram I started before class.
让我把这张课前画的图画完。
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